# parse   美 [pɑːrs]
# vt. 解析；从语法上分析
# vi. 理解；从语法上分析
# n. 从语法上分析；分列

# file operation
# open
# reading
# close

# read only


read_file = open("readfile.txt", "a")
read_file.write("\n5")
read_file = open("readfile.txt", "r")
print(read_file.read())

read_file.close()

read_file = open("readfile1.txt", "w")

'''
# read and write
open("readfile.txt", "r+")

# write, overwrite the existing file 
# or w can new a new file
open("readfile.txt", "w")

# append, can't modify, but can add new content in the end of the file
open("readfile.txt", "a")
'''
